LOS ANGELES ¨C When activist investor Daniel Loeb announced in October he¡¯d sold his Sony Corp. stake, executives at the company¡¯s Culver City, California, studio lot expressed relief.
¡°Sit by the side of the river long enough, and the bodies of your enemies will float by,¡± Tom Rothman, chairman of Sony¡¯s TriStar Productions venture, wrote in an Oct. 21 email to Michael Lynton, Sony¡¯s top U.S. executive, and Amy Pascal, who runs the film business. The message is among thousands of documents released this month by hackers who targeted the entertainment unit.
¡°Champagne for all,¡± wrote Sony Pictures Chief Financial Officer David Hendler on Oct. 9 after finding out that Loeb had sold.

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